Transmitter-support.



G. E. MATHER & B. BAILEY.

TRANSMITTER SUPPORT.

APPLICATION FILED MAR. 2. 1917.

Patented Jul 16, 1918.

'tected by its support.

a i ta v enone'n n. MATHERbF EAST omen, nnwauztsn'r; Ann Bnn'raarr BAILEY, or new roan, n. Y., assatenoas T0 wns'ramv ntncrar comran r, mcoarona'ran, or new rear, n. m, a coarona'rron or newsman.

TRANSMITTER-SUPPORT.

aataeea.

To all whom it may concern Be it known that we, GEORGE E. MA'rrmR and BERTRAM .BAniumcitizens of the United States, residing at 'East' Orange, in the county of Essex and State of New Jersey,

and at New York, in thezcountyof New York and State of New'York, respectively, have invented certainf'new' and useful Improvements .in Transmitter-Supports, of which the following is 'a full, clear, concise, and exact description.

This'invention relates to adjustable telephonic transmission devices, and'more particularly to adjustable supports for telephone transmitters. The invention is es: pecially applicable to transmitters mounted on chest plates and supported on the body of the user in any desired manner..

Gne object of the invention is to provide a support of simple and compact construc tion wherein the transmitter, when not in use, is positioned out of the'wayjand pro provide a wide range of adjustment. of the support to accommodate itto difierentusers and to provide a constructionwhich will not interfere withv the freedom of movement of the user whether, the transmitter is posi tioned for use or not. f

This invention provides an adjustable telephone support for transmitters and the like wherein the transmitter is mounted on a movable arm pivoted to a second arm, which is in turn pivoted to a suitable baseto Specification of. Letters Patent. 7

Other objects are to base, a chest plate 2 being used in ent instance. The lugs Bot the member 1 Patented July as, rare, Apflicationfiled March 2, 1917. Serial No. 152,068.

are perforated and studs 4 extend therethrough. Each of the studs. 4 passes through the inner end of its respectivecurved arm 5 I which is shown as mounted on the inner side of its respective leg 3. Each of the studs has mounted thereon a bent plate 6- which engages the other side of its leg 3 and has;

lugs 7 which engage the notches 8 in its reispective arm 5, as shown in Fig. 3. The

plate 6 is thus movable with its arm.5 and coacts therewith to'provide a better bearing provided with a" pin 9 which fits into an opening 10 in its arm 5;. The studs tare'also provided. with split' washers 11. and lock on its respectiveleg 3. The studs. 1 are each ,nuts 12, the outer-ends of the studs being headed to prevent loss of the nuts 12. W ith this construction all tendenc of the. spilt .washers 11 tojcut into the statlonary part'sis eliminated, as the stud 4, arm 5, platejt,

washer 11,"and nut 12 rotate as a single unit.

By tighteningthe lock nuts 12, the arms 5, are engaged withfthe legs 3 with'suficient protection to prevent accidental movement.

The stud being fixedto the arms -5"is held against rotation when it is'de'sired to tightenthe nuts and thereby facilitates quick, ad:

'justment' A variety of other means'can ob-- 1 viously be utilized to prevent rotation jof the stud if desired. i I

The outerends of the arms 5i1arefl per i forated and held together by a stud 1310f provide a. wide range of movement for the similar construction to the "stud 4. and held transmitter in a plane perpendicular to the base. It further provides two pair of arms ing shown; Fig. 2 is a front elevation there-' of;and Fig. 3 is a detailedjview of the joint provided between the base and thelarms pivoted thereto.

In the form of invention port comprises a U-shaped memberL'which in practice would e secured to a y. sutable shown, the sup- ;against rotation by one of the arms'5 in a like manner. The stud 13 has two upwardly curved transmitter arms 14: pivoted thereto, j

' the: lower ends of the arms 14 lying between the outer ends of the arms 5.: The stud 13 j 1 has'a split washer 15 and lock nut 16, which is held against loss by heading the end of the stud 13. A transmitter 17 is shown heldbetween the upper ends of the arms 14 and pivoted thereto. To increase the friction.

both ,ends; of the arms 5 are dished out slightly at the points where they surround the studs 4 and 13 respectively. Thearms 5 when taken together may be considered as a single U-shaped arm, as may also the arms .13, and'obviously may be so constructed if desired. 7, The'U-shaped transmitter armissmallerthan the outer U-shaped arm and nests therein when the part are in 9195.911

in the arms 14 is also desirable in an increased range of ad ustment.

position. I In this position the'arms 5 and '14 inclose the transmitter 17 to a great extent and serve toprotect it against in ury..

A cord '18 carries the conductors to the transmitter through a'bushing 19. A ush button 20 is also shown on the .transmltter but forms no part of the present inventlon. While shown as applied to a transmitter, the support can obviously be used to sup port receiversin a similar manner, if de-, v sired. The transmltter, instead of facing inwardly, as shown, might be arranged to face outwardly if the support on wh1ch it was mounted and the way in which it was to be used made it more convenient.

When not in use the arms 5 .and Marc folded inwardly to brin the transmitter close to the base and inc ose it. within the arms, thus providing a simple and compact arrahgement as well as protecting the transmitter. When it is desired to use the transmitter it is drawn out and moved to the dejsiredposition, the friction bein so proportioned as to permit movement w endesired, but sufficiently great to hold the transmitter in any position to which it 1s moved. The

two sets of arms allow wide latitude of adjustment in both horizontal and vertical directions and the support is of such a compact structure that it does not interfere wlth the freedom of movement of the user even with'the transmitter'in position for use.

The pivotal movement of the transmitter-16 What is claimed is: Y

1. An adjustable telephonic device 'comprising a base member, a U-shaped arm having its legs pivoted to said base member, a second U-shaped arm, means pivoting the bases of said U-shaped arms together, and a telephonic 1 transmission element amounted between the legs of said secondarm; said 7 within said first arm.

first arm being broader than the second, whereby the second arm may be positioned 2. An adjustable telephonic" device comprising a base member, a U-shaped arm having its legs pivoted to said base member and vertically movable relative thereto, a second- U-shaped arm, means to plvot the bases of said 'U-shaped arms together, and a tele- Yphonic transmission element mounted between the legs of said second U-shaped arm; said first arm being broader than the second,

whereby the second arm may be moved within said first arm 'to position said teleproviding said arm member.

4. An adjustable telephonic device comprising a base member, an arm member, one of said members having a plate portion and the other member having portions engaging the opposite sides Of Sfild plate portion, a stud extending through said plate and plate engaging portions to dpigot sazld rtneimibers vtoy sai s u 0 very gether, means carrie I the friction between said members, means holding said studnagainst rotating movement'relative to said engaging portions, and

a telephonic transmission element carried by said arm member. 7 Y

'5. An adjustable telephonic device comprising a base member having an upstanding ear, an arm pivoted to said ear and having a portion en aging one side of the ear andanother portion movable with said first. 'portion engaging the opposite side of said ear, a stud pivoting said arm to said ear,

means carried by said stud to vary the friction between saidarm and ear, means holdtinig said stud against rotating movement re at ive to said am, and a telephonic transmission. element carried by said arm.

6. An adjustable telephonic element comprising a base member having an'upstanding ear, an'arm havin a recess therein engaging one side of sai ear, a separate plate engaging theotherside of said ear and having a projection to en age said recess, a stud pivoting said arm an plate to said lug, said 'stud being rotatable with said arm and plate, means carried by said stud to vary the friction of said arm and plate with said ear, and a telephonic transmission element carried by said arm.

In witness whereof, I hereunto subscribe my name this 23rd day of February, A. D.

: GEORGE E. MATHER.

In witness whereof, I hereunto subscribe my name this 1st day} of March, A. D. 1917.

B RTRAM BAILEY. 

